Gas-engine.



J. E. PATTERSON.

GAS ENGINE.

APPLICATION FILED AUG. 6. 190B.

Patented Feb. 23, 1909.

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GAS ENGINE. APPLICATION FILED AUG. 6, I908.

Patented Feb. 23, 1909.

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mounte UNITED sTATEs JOHN E. PATTERSON, OF GAINESVILLE, TEXAS.

Specification of Letters Patent.

GAS-E NGIN E Patented Feb. 23, 1909.

Application filed August 6, 1908. Serial No. 447,261.

To all whom it moi concern:

Be it known that 1, JOHN E. PATTERSON, a citizen of the United States, residing at Gainesville, in the county of Cooke and State of Texas, have invented a new and useful Gas-Engine, of which the following is a specification.

This invention relates to gas engines, with special reference to a gas engine provided with both recilprocating and rotary motor elements, the construction.

One of the objects of this invention is to provide an improved motor for use in connection with gas engines, said motor being actuated by the exhaust from a reciprocating motor element.

Another object of the invention is to provide an im ran ed to minimize back pressure.

ith the above and other objects in view the invention consists in-general of an improved form of motor casing wherein is an improved motor, the casing being in communication with the exhaust from a reciprocatingmotor element.

The-invention further consists in certain novel details of construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and specifically set forth in the claims.

In the accompanying drawings, like characters of reference mdicate like parts in the several views, and :Figure 1 is a side elevation of an engine constructed in accordance with this invention, the motor casing, cover and motor being shown in sections. Fig. 2 is a cross section taken through the rotary element and its casing.

The numeral 10 indicates the frame of the atter being of an improved cy mders 11. In the present instance two cylinders are shown mounted u on the frame but it is not intended that t e number of cylinders shall be limited to two inasmuch as t e device will work with any number of cyl- These cylinders may be of any preferred form of explosive motor cylinder, and may be, arranged to operate on either the two cycle or four cycle type. It is preferred, however, that the cylinders shall be of such number and so arranged as to make a substantially continued exhaust, that is to say, where a two cycle type of reciprocating engine is used, at least two cylinders are preferable, while with the four cycle,

r'oved casing for the motor ar gine and upon this frame are mounted the at least four 0 linders are best adapted to develop'the fu 1 power of the engine. Each 1 of these cylinders is provided with the usual reciprocating piston 12. A crank-shaft 13 is mounted insuitable bearings on the frame 10 and supports at one end a .fly-wheel 14 which may if desired be used for conveying iston rods 15 serve to connect the crank shaft 13 with the several pistons 12 At 16 is indicated the su ply pipe for the combustible, and it is to tie understood that this is merely typical of any such supply pipe in the same manner that the cylinders are typical of any explosive motor cylinders.

The valve arrangements for the supply pipe may be of any desired form and are not deemed necessary here to be shown as they form no especial part of this invention At 17 are indicated the exhaust valve casings containing ordinary exhaust valves which are connected to the crank-shaft 13 by an suitable form of gearin as indicated at 18.

Mounted upon the trame 10 is a motor casing 19, this casing being arranged concentric to the axis of the crank-shaft 13. The casing 19 is provided with nozzles 20 preferably two in number op )ositely disposed. It will be plain that where but one cylinder is used it will be necessary to have but one nozzle, and that where more than two cylinders are used a separate nozzle may, if desired, be used for each cylinder. \Vhere' more than two cylinders are used, however, it may, in some cases, he found advisable to connect the exhaust pipes so that but two nozzles will be used, and thus avoid undesirable complications of" mcclmnism. The axes of these nozzles are arranged to lie in a circle of slightly smaller diameter than the inner )criphcry of the casing 19.

l-Viti which comprises a back plate 21 to which is rigidly attached a centrafrustow-onical hub 22 which isin turn fixed to the shaft 13 by means of a suitable key 23. Upon this back plate 21 is mounted a series of impeller )ladcs or buckets 24 extending around the; periphery of the back plate and provided ith an annular ring or plate 25 which serves to connect and brace the outer ends of said blades. Spaced from this series of blades but concentric therewith is a second series of blades 26 in like manner provided with a bracing ring 27 connected to the free ower to a pulley by means of a suitable belt.

un the casing 19 is held the motor ends. This motor may be made of cast that the exhaust nozzle metal if desired and the back plate, hub, both series of buckets and rings cast as a single piece,or it may be built of plates and cast metal riveted or otherwise fastened to ether, as may be best found expedient.

he inner series of blades 26 are spaced.

from the shaft 13 in such manner as to form an exhaust chamber 28.

The casing 19 is provided with an outer closure comprising a head 29 provided with rigidly connected inwardly extending arcuate flanges 30 spaced apart at their adjacent ends and arranged to lie between the two series of blades 24 and 26. The adjacent ends of these flanges or as to constitute an exhaust for the outer series of blades 24 and a nozzle for the inner series 26, this combined exhaust and nozzle being indicated by the numeral 31. It is to be noted that there will be one of these nozzles 31 for each of the nozzles 20 and 31 will be so positioned that each will he in advance of the nozzle 20 to which is formed the complement. The head 29 is provided with a centrally disposed exhaust port 32 communicating with an exhaust passage 33 formed preferably on the exterior of the head. his exhaust passage may in turn be connected to an exhaust pipe if desired or may simply extend downward and exhaust into the atmosphere, as indicated in Fig. 1.

For the purpose of conducting the exhaust from the cylinders .11 to the motor casing nozzles 20, there are provided pipes 34 connecting the exhaust valve casings 17 with the nozzles 20, there being one of these p'pes for each of the valve casings 17. Around the chamber 28 on the head 29 are other arcuate flanges 35, spaced atthe ends to form exhaust ports 36. i

In the operation of the device, when the piston 12 in one of the cylinders 11 is on the exhaust stroke, the exhaust gases will be forced out through the pipe 34; connected to that cylinder and through the nozzle 20 connected to the pi e. The ases then pass from this nozz e to the lades 24; thereby impelling the motor element until the exhaust port and nozzle 31 is reached. At this point the gases pass to the inner series of lades 26 and add another impulse to the motor element. From this series of blades the exhaust gases pass through the port 36 and into the exhaust chamber 28, thence passing out through the port 32 and assa e 33. By means of this arrangement 1t wi be seen that the motor obtains two distinct series of impulses and that when the gases pass out of the ort 32 practicall all of the ower obtainable therefrom has een utilize It is obvious that minor changes may be 'made in the form and construction of this invention without departing from the mawalls are so formed with terial principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and, described, but it is wished to include all such as properly come within the scope thereof.

Having thus described the invention, what is claimed as new, is

' 1-. In a gas engine, a plurality of cylinders, a iston held to reciprocate in each of said cy 'nders, a motor casing having a pair of oppositely disposed nozzles formed in the wall thereof and a centrally disposed exhaust chamber in communication with the exterior of said casing, a cylinder exhaust pipe leadin from each of said cylinders to one of sai nozzles, a motor held in said casing, a series of blades on said 'motor adjacent the inner periphery of the casing,

a Wall concentric wlth the casin adjacent the inner ends of said blades an provided with a pair of oppositely dis osed exhaust ports, a second series of b ades on said motor concentric with the first series lying adjacent said wall, and a second wall provided with a air of oppositely disposed exhaust ports ying series of blades and the exhaust chamber.

2. In a as engine, a pair of cylinders, a piston hel to reciprocate in each of said cylinders, a motor casing having a pair of op ositely disposed nozzles formed in the wa thereof and a centrally disposed exhaust chamber in communication with the exterior of ,said casing, an leading from each of saidcylinders to one of said nozzles, a motor held in said casing comprising a back late, a centrally posed frusto-conical ub, aperipheral series of impeller blades, outer ends of said impellerblades, a second series of impeller blades concentric with and located internally of the first'series in spaced relation thereto; and a second ring connecting the free ends thereof; in combination a wall concentric with the casi held between the first and second series of filades and provided with oppositel disposed exhaust ports, a second wall he d'between the exhaust chamber and the second seriesv of blades provided with oppositely disposed exhaust ports, a frame whereon is mounted said cyhnders and said motor casing, .a crank-shaft supported in said frame, said crank-shaft passing through said frustoconical hub and being keyed thereto, and piston rods connecting said pistons to said crank-shaft;

3. The combination with a multiple and its crank between said second exhaust pipe a ring connecting the 4. The combination with a multiple cylinder internal-combustion engine, and its crank shaft; of a rotar motor operatively connected to the cranli shaft, said motor havingjaseries of inlets for the motive fluid,

and said inlets communicating respectively withthe'exhausts of the internal combustion engine cylinders.

5. The combination with a multiple linder reciprocating engine, and its crank c sllaft; of an impact rotary motor operatively connected to the crank shaft, and nozzles discharging onto said motor, said nozzles communicating respectively with the exhausts of the engine cylinders.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

JOHN E. PATTERSON. Witnesses:

WALTER C. NIoHoLs, Jr., E. N. BLACKBURN. 

